Problem
As HVAC energy and industry
standards become more stringent, the
accuracy of measuring low air flow
(below 50cfm) air-exchange will
become increasing important to
reduce the carbon footprint of building
energy use. 
Product Roadmap
Design Solution
Simple, reuseable, low cost, low flow measurement device
Based on tested volume capture method
Easy to use (as simple as roll bag and press against vent)
Extendsover 2 feet beyond user's reach for ceiling vents
Improved accuracy compared to current;y availble
equipment on the market
With automatic flow calculation to mitigate human error
Data/Analysis
Current Design
Tech Specs
Acknowledgements
Sponsor: Shawn Oram Advisor: Teddy Johnson
Special Thanks to Troy Dunmire
Due to Covid-19, we were unable to do any field
testing nor could we compare to measurements
using equipment traditionally used by industry
professionals
The test rig was calibrated by monitoring electrical
properties of the fan with a multimeter and
developing fan curves using the fan affinity laws.
Calibrated test rig
Infrared Sensor
Limit Switch
Arduino Micro
w/LCD screen